Perhaps you should try some spelling variations:
2.3.1 communication » 2.3.1.1 communication, 2.3 communication, 2.2.3 communication
technology usage » technology use, technology age, technology users
et developpement » de developpement, le developpement, test development
developpement en » developpement et, developpement des, developpement de
usage inflation » wage inflation, age inflation, usage information
communication 3 » communication _, communication a
inflation good » inflation gopi, inflation gerold, inflation gross
price 2.3.1 » prices 2.3.1, prices 2.3.4, prices 2.3.5
good price » goods price, food price, goods prices
3 et » 13 et, 3 fet, 3 set

You may be able to get more results by adjusting your search query.

• Adding a wildcard symbol may retrieve word variants: technology usage inflation good price 2.3.1 communication 3 et developpement en afrique.*.